package com.example.myapplication;

import android.animation.ValueAnimator;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.Path;
import android.graphics.RectF;
import android.renderscript.Sampler;
import android.util.AttributeSet;
import android.util.Log;
import android.view.View;

public class MyView extends View {
    private final  String TAG="MyView";
    private Paint paint=new Paint();
    private int value;

    public MyView(Context context,AttributeSet attrs) {
        super(context, attrs);

        paint.setColor(Color.RED);
        paint.setStrokeWidth(1);
        paint.setAntiAlias(true);
        paint.setStyle(Paint.Style.STROKE);
        paint.setTextSize(20);

        ValueAnimator valueAnimator=ValueAnimator.ofInt(0,500);
        valueAnimator.setDuration(5000);
        valueAnimator.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
            @Override
            public void onAnimationUpdate(ValueAnimator animation) {
                value =(int) animation.getAnimatedValue();
                invalidate();
            }
        });
        valueAnimator.start();

    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        Log.e(TAG,"onDraw");
        canvas.drawCircle(value,value,50,paint);

/*        canvas.drawColor(Color.BLUE);*/
/*        canvas.drawLine(100,100,300,500,paint);*/
        /*canvas.drawRect(100,100,400,400,paint);*//*
        RectF rect=new RectF(100,100,400,400);
        canvas.drawRoundRect(rect,50,50,paint);*/

/*        canvas.drawCircle(300,300,100,paint);*/
      /*  canvas.drawArc(100,100,300,300,225,90,true,paint);
*/
/*      canvas.drawPoint(200,200,paint);
        Path path=new Path();
        path.lineTo(100,100);
        path.lineTo(100,300);
        path.lineTo(200,500);
        canvas.drawPath(path,paint);

        canvas.drawText("小米",200,200,paint);*/

/*        Bitmap bitmap= BitmapFactory.decodeResource(getResources(),R.drawable.cat);
       canvas.drawBitmap(bitmap,200,200,paint);
        Matrix matrix=new Matrix();*/

/*        canvas.drawBitmap(bitmap,matrix,paint);
        matrix.setRotate(90,225,225);
        canvas.drawBitmap(bitmap,matrix,paint);
        matrix.setRotate(90,225,225);
        canvas.drawBitmap(bitmap,matrix,paint);
        matrix.setRotate(90,225,225);
        canvas.drawBitmap(bitmap,matrix,paint);*/



/*        Matrix matrix2=new Matrix();
        matrix2.setScale(-0.5f,0.5f);
        matrix2.postTranslate(440,0);
        canvas.drawBitmap(bitmap,matrix2,paint);

        Matrix matrix3=new Matrix();
        matrix3.setScale(0.5f,-0.5f);
        matrix3.postTranslate(0,360);
        canvas.drawBitmap(bitmap,matrix3,paint);

        Matrix matrix4=new Matrix();
        matrix4.setScale(-0.5f,-0.5f);
        matrix4.postTranslate(440,360);
        canvas.drawBitmap(bitmap,matrix4,paint);*/





/*        matrix.setScale(-0.5f,-0.5f);
        matrix.postTranslate(500,500);
        canvas.drawBitmap(bitmap,matrix,paint);*/


    }
}
